CN110549704A - Multilayer sound-insulation bulletproof glass and manufacturing method thereof - Google Patents

Multilayer sound-insulation bulletproof glass and manufacturing method thereof Download PDF

Info

Publication number
CN110549704A
CN110549704A CN201910611819.4A CN201910611819A CN110549704A CN 110549704 A CN110549704 A CN 110549704A CN 201910611819 A CN201910611819 A CN 201910611819A CN 110549704 A CN110549704 A CN 110549704A
Authority
CN
China
Prior art keywords
polyvinyl butyral
film
sound
proof
glass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910611819.4A
Other languages
Chinese (zh)
Inventor
任明生
骆罗辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Hua Shang Automotive Glass Industries Co Ltd
Original Assignee
Jiangsu Hua Shang Automotive Glass Industries Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Hua Shang Automotive Glass Industries Co Ltd filed Critical Jiangsu Hua Shang Automotive Glass Industries Co Ltd
Priority to CN201910611819.4A priority Critical patent/CN110549704A/en
Publication of CN110549704A publication Critical patent/CN110549704A/en
Pending legal-status Critical Current

Links

Classifications

    • B32B17/064
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/36Layered products comprising a layer of synthetic resin comprising polyesters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/08Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/162Cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/10Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/304Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • B32B2307/3065Flame resistant or retardant, fire resistant or retardant
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51Elastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558Impact strength, toughness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/718Weight, e.g. weight per square meter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00Protective equipment
    • B32B2571/02Protective equipment defensive, e.g. armour plates, anti-ballistic clothing

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

The invention provides a multilayer sound-insulation bulletproof glass, which comprises eight structural layers which are sequentially bonded and connected, namely a first float glass plate, three first polyvinyl butyral thin films, a second float glass plate, a second polyvinyl butyral thin film, a third polyvinyl butyral thin film and a PET explosion-proof film. The polyvinyl butyral film has certain sound insulation and noise reduction functions, the thickness of two layers of float glass plates can be correspondingly reduced on the premise of ensuring that the bulletproof performance is not changed, and the PET explosion-proof film has good strength and toughness, small thickness and light weight, so that convenience is provided for processing, mounting and use. The invention also provides a manufacturing method of the multilayer sound-insulation bulletproof glass.

Description

Multilayer sound-insulation bulletproof glass and manufacturing method thereof
Technical Field
the invention belongs to the technical field of special glass processing, and particularly relates to multilayer sound-insulation bulletproof glass and a manufacturing method thereof.
Background
As a safety protection product, the bulletproof glass is widely applied to systems such as banks, jewels, securities, insurance, postal service and the like, is also suitable for places with higher requirements on safety such as high-grade villas, business buildings and the like, and forms a huge market scale. However, in recent years, the use and installation of safety glass are different depending on the application, and in some places where safety requirements are high, safety glass is often required to have both bulletproof performance and sound insulation performance. The common bulletproof glass can meet the selection requirements of different performance levels and price levels, but only has a bulletproof function and does not have a soundproof effect.
Disclosure of Invention
The invention aims to provide a production process of laminated glass with holes, which can completely exhaust air.
according to one aspect of the invention, the multilayer sound-insulation bulletproof glass comprises eight structural layers which are sequentially bonded and connected, namely a first float glass plate, three first polyvinyl butyral films, a second float glass plate, a second polyvinyl butyral film, a third polyvinyl butyral film and a PET (polyethylene terephthalate) explosion-proof film.
In some embodiments, the first float glass sheet has a thickness of 5.0mm, the first polyvinyl butyral film has a thickness of 1.52mm, the second float glass sheet has a thickness of 4.0mm, the second polyvinyl butyral film has a thickness of 1.52mm, the third polyvinyl butyral film has a thickness of 0.76mm, and the PET rupture film has a thickness of 0.18 mm.
according to another aspect of the invention, a method for manufacturing sound-proof and bulletproof glass is provided, which comprises the following steps:
Preparing raw materials, namely cutting, grinding and washing and silk-screen printing first float glass and second float glass according to a required pattern, and preparing a PET (polyethylene terephthalate) explosion-proof film, a first polyvinyl butyral film, a second polyvinyl butyral film and third polyethylene;
Sheet combination, namely combining a first float glass plate, three layers of a first polyvinyl butyral film, a second float glass plate, a second polyvinyl butyral film, a third polyvinyl butyral film and a PET (polyethylene terephthalate) explosion-proof film in sequence, wherein the qualified environment is required to be ensured in the sheet combination process, and nitrogen is required to be used for removing static dust on the surface when the PET explosion-proof film and a third polyvinyl butyral film glass cover plate are combined, so that no sundries exist between the structures, the pockmark phenomenon is caused, and the product quality is influenced;
Cold pumping, namely surrounding the periphery of the sound-proof and bulletproof glass after being combined by using demolding cloth, surrounding the periphery by using a breathable felt, putting the treated sound-proof and bulletproof glass into a vacuum bag, and connecting a vacuum pump for cold pumping to ensure that the vacuum degree is qualified and airtight;
And (4) high-pressure forming, closing a kettle door, performing high temperature, high pressure, cooling, depressurization, cooling and kettle discharge to obtain the bulletproof glass.
In some embodiments, the environmental temperature of the combined sheet is 18-25 ℃, and the environmental humidity is controlled to be below 35%.
In some embodiments, the vacuum parameter of the chill is from-0.096 to-0.10 megapascals, with a 3 hour period of chill.
In some embodiments, the high pressure molding is performed under a pressure of 1150Kpa, at a high temperature of 138 ℃, for an equilibration time of 150 minutes, and during a cooling phase, the temperature is lowered to 40 ℃ after waiting 120 minutes.
In some embodiments, the sound-insulating, ballistic resistant glass is subjected to a high pressure forming process using an autoclave.
The beneficial effects are as follows: the polyvinyl butyral film has certain sound insulation and noise reduction functions, the thickness of two layers of float glass plates can be correspondingly reduced on the premise of ensuring that the bulletproof performance is not changed, and the PET explosion-proof film has good strength and toughness, small thickness and light weight, so that convenience is provided for processing, mounting and use.
The bulletproof glass is approximately 15mm in thickness, has light transmittance of about 83%, good fire resistance and good sound and heat insulation performance, can prevent 79-type 7.62mm light submachine guns from 3 continuous bullets at a distance of 10 meters, has high explosion resistance, and can effectively prevent the bullets from penetrating through the glass and prevent secondary damage to human bodies caused by glass fragments.
The bulletproof glass prepared by the invention can be applied to the aviation field with different performance requirements; bullet-proof glass required by ground troops; the automotive industry such as securicars, cars for home use, etc.; other places where firearms may be struck in the construction industry, such as banks, prisons, and the like.
Drawings
fig. 1 is a schematic structural diagram of a multilayer soundproof and bulletproof glass according to an embodiment of the invention.
Detailed Description
Fig. 1 schematically shows a multilayer soundproof and bulletproof glass according to an embodiment of the present invention. As shown in fig. 1, the multilayer sound-proof and bulletproof glass comprises eight structural layers which are sequentially bonded and connected, namely a first float glass plate, three first polyvinyl butyral films, a second float glass plate, a second polyvinyl butyral film, a third polyvinyl butyral film and a PET explosion-proof film.
The thickness of the first float glass plate is 5.0mm, the thickness of the polyvinyl butyral film is 1.52mm, the thickness of the second float glass plate is 4.0mm, the thickness of the polyvinyl butyral film is 1.52mm, the thickness of the polyvinyl butyral film is 0.76mm, and the thickness of the PET explosion-proof film is 0.18 mm.
The invention also provides a manufacturing method of the sound-proof bulletproof glass, which comprises the following steps: preparing raw materials, cutting, grinding and washing and silk-screen printing the first float glass and the second float glass according to a required pattern, and preparing a PET explosion-proof film, a first polyvinyl butyral film, a second polyvinyl butyral film and a third polyvinyl butyral film.
and (2) sheet combination, namely combining the first float glass plate, the three layers of the first polyvinyl butyral film, the second float glass plate, the second polyvinyl butyral film, the third polyvinyl butyral film and the PET explosion-proof film in sequence, wherein the qualified environment is required to be ensured in the sheet combination process, and nitrogen is required to be used for removing static dust on the surface when the PET explosion-proof film and the third polyvinyl butyral film glass cover plate are combined, so that no sundries exist between the structures, the pockmark phenomenon is caused, and the product quality is influenced. The environmental temperature of the combined sheet is 18-25 ℃, and the environmental humidity is controlled to be below 35%.
and (3) cold pumping, namely surrounding the closed soundproof bulletproof glass by using a demolding cloth, surrounding the periphery by using a breathable felt, putting the treated soundproof bulletproof glass into a vacuum bag, and connecting a vacuum pump for cold pumping to ensure that the vacuum degree is qualified and airtight. The vacuum parameter of the cold pumping is-0.096 to-0.10 MPa, and the cold pumping time is 3 hours.
And (4) high-pressure forming, closing a kettle door, performing high temperature, high pressure, cooling, depressurization, cooling and kettle discharge to obtain the bulletproof glass. The sound-proof and bulletproof glass is subjected to high-pressure forming treatment by using an autoclave. The high-pressure of the high-pressure forming is 1150Kpa, the high-temperature is 138 ℃, the balancing time is 150 minutes, the temperature is reduced, and the pressure is reduced after the temperature is reduced to 40 ℃ for 120 minutes.
The polyvinyl butyral film has certain sound insulation and noise reduction functions, the thickness of two layers of float glass plates can be correspondingly reduced on the premise of ensuring that the bulletproof performance is not changed, and the PET explosion-proof film has good strength and toughness, small thickness and light weight, so that convenience is provided for processing, mounting and use. The bulletproof glass is approximately 15mm in thickness, has light transmittance of about 83%, good fire resistance and good sound and heat insulation performance, can prevent 79-type 7.62mm light submachine guns from 3 continuous bullets at a distance of 10 meters, has high explosion resistance, and can effectively prevent the bullets from penetrating through the glass and prevent secondary damage to human bodies caused by glass fragments. The bulletproof glass prepared by the invention can be applied to the aviation field with different performance requirements; bullet-proof glass required by ground troops; the automotive industry such as securicars, cars for home use, etc.; other places where firearms may be struck in the construction industry, such as banks, prisons, and the like.
The foregoing are only some embodiments of the invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims (7)

1. the sound-insulation bulletproof glass is characterized by comprising eight structural layers which are sequentially bonded and connected, namely a first float glass plate, three first polyvinyl butyral thin films, a second float glass plate, a second polyvinyl butyral thin film, a third polyvinyl butyral thin film and a PET explosion-proof film.
2. The sound-insulating bullet-proof glass according to claim 1, wherein the thickness of the first float glass sheet is 5.0mm, the thickness of the first polyvinyl butyral film is 1.52mm, the thickness of the second float glass sheet is 4.0mm, the thickness of the second polyvinyl butyral film is 1.52mm, the thickness of the third polyvinyl butyral film is 0.76mm, and the thickness of the PET explosion-proof film is 0.18 mm.
3. A method of making sound-insulating, bullet-proof glass according to any of claims 1-2, comprising:
Preparing raw materials, namely cutting, grinding and washing and silk-screen printing first float glass and second float glass according to a required pattern, and preparing a PET (polyethylene terephthalate) explosion-proof film, a first polyvinyl butyral film, a second polyvinyl butyral film and third polyethylene;
Sheet combination, namely combining a first float glass plate, three layers of a first polyvinyl butyral film, a second float glass plate, a second polyvinyl butyral film, a third polyvinyl butyral film and a PET (polyethylene terephthalate) explosion-proof film in sequence, wherein the qualified environment is required to be ensured in the sheet combination process, and nitrogen is required to be used for removing static dust on the surface when the PET explosion-proof film and a third polyvinyl butyral film glass cover plate are combined, so that no sundries exist between the structures, the pockmark phenomenon is caused, and the product quality is influenced;
Cold pumping, namely surrounding the periphery of the sound-proof and bulletproof glass after being combined by using demolding cloth, surrounding the periphery by using a breathable felt, putting the treated sound-proof and bulletproof glass into a vacuum bag, and connecting a vacuum pump for cold pumping to ensure that the vacuum degree is qualified and airtight;
And (4) high-pressure forming, closing a kettle door, performing high temperature, high pressure, cooling, depressurization, cooling and kettle discharge to obtain the bulletproof glass.
4. The method for making sound-insulating bulletproof glass according to claim 3, wherein the environmental temperature of the laminated sheet is 18-25 ℃, and the environmental humidity is controlled to be below 35%.
5. The method for making sound-insulating bulletproof glass according to claim 3, wherein the vacuum parameter of the cold pumping is-0.096 to-0.10 MPa, and the length of the cold pumping is 3 hours.
6. The method for manufacturing the soundproof bulletproof glass according to claim 3, wherein the high pressure forming is performed under a high pressure of 1150Kpa, the high temperature is 138 ℃, the equilibration time is 150 minutes, and the temperature reduction stage is performed after waiting 120 minutes when the temperature is reduced to 40 ℃.
7. the method for manufacturing a sound-insulating bulletproof glass according to claim 3, wherein the sound-insulating bulletproof glass is subjected to a high-pressure molding treatment using an autoclave.
CN201910611819.4A 2019-07-08 2019-07-08 Multilayer sound-insulation bulletproof glass and manufacturing method thereof Pending CN110549704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910611819.4A CN110549704A (en) 2019-07-08 2019-07-08 Multilayer sound-insulation bulletproof glass and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910611819.4A CN110549704A (en) 2019-07-08 2019-07-08 Multilayer sound-insulation bulletproof glass and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN110549704A true CN110549704A (en) 2019-12-10

Family

ID=68735703

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910611819.4A Pending CN110549704A (en) 2019-07-08 2019-07-08 Multilayer sound-insulation bulletproof glass and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN110549704A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111634079A (en) * 2020-04-28 2020-09-08 江苏华尚汽车玻璃工业有限公司 Anti-splashing bulletproof glass and manufacturing method and application thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873960A (en) * 2012-09-17 2013-01-16 浙江晶泰玻璃科技有限公司 Processing method of special synthetic glass
CN103496224A (en) * 2013-09-06 2014-01-08 天津广源新材料科技有限公司 Light bullet-proof glass without splashed fragments
CN104553207A (en) * 2014-12-12 2015-04-29 中国航空工业集团公司北京航空材料研究院 Safety glass capable of preventing splashing during breaking
US20170072662A1 (en) * 2015-09-10 2017-03-16 Alberto Oscar Fontela Reinforced safety glass and method of manufacture
CN109334170A (en) * 2018-09-25 2019-02-15 北京京北华燕玻璃有限公司 A kind of bullet-proof composite glass and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873960A (en) * 2012-09-17 2013-01-16 浙江晶泰玻璃科技有限公司 Processing method of special synthetic glass
CN103496224A (en) * 2013-09-06 2014-01-08 天津广源新材料科技有限公司 Light bullet-proof glass without splashed fragments
CN104553207A (en) * 2014-12-12 2015-04-29 中国航空工业集团公司北京航空材料研究院 Safety glass capable of preventing splashing during breaking
US20170072662A1 (en) * 2015-09-10 2017-03-16 Alberto Oscar Fontela Reinforced safety glass and method of manufacture
CN109334170A (en) * 2018-09-25 2019-02-15 北京京北华燕玻璃有限公司 A kind of bullet-proof composite glass and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111634079A (en) * 2020-04-28 2020-09-08 江苏华尚汽车玻璃工业有限公司 Anti-splashing bulletproof glass and manufacturing method and application thereof

Similar Documents

Publication Publication Date Title
US4812359A (en) Impact-resistant laminate
EP0676996B8 (en) A method of forming a curved, shatterproof glass laminate
CN109334170B (en) Bulletproof composite glass and preparation method thereof
CN102941713A (en) Sapphire composite material and preparation method thereof
CN110549704A (en) Multilayer sound-insulation bulletproof glass and manufacturing method thereof
CN113844126A (en) Manufacturing method of bulletproof glass for vehicle and bulletproof glass
CN107000387B (en) Laminate of thick polymer material sheet and thin glass sheet
CN213082581U (en) Anti-splashing bulletproof glass
CN1569717A (en) Laminated glass and its production method
CN201186897Y (en) Bulletproof antifog glass
CN111006547A (en) Light bulletproof armor composite structure containing transparent aerogel
CN103496224B (en) A kind of bulletproof glass that is light-duty, that splash without fragment
CN108582926B (en) Preparation method of bidirectional bulletproof glass
CN110356071B (en) Invisible composite material forming process and application
CN103273702A (en) Heat strengthening laminated glass
CN207859644U (en) A kind of lightweight bullet proof glass structure
CN110877479A (en) Laminated glass
RU2359832C1 (en) Transparent ceramic composition
CN111038045A (en) Transparent armor plate and manufacturing method thereof
CN113400669A (en) Manufacturing method of high-energy-absorption honeycomb panel for lightning-proof vehicle floor
JP2006124255A (en) Bulletproof glass
CN204736514U (en) Light -duty shellproof glass
CN111634079A (en) Anti-splashing bulletproof glass and manufacturing method and application thereof
CN214091550U (en) Heat-insulation laminated glass
CN209775759U (en) Antistatic glass structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20191210